LGM-35 Sentinel
The LGM-35 Sentinel, also known as the Ground Based Strategic Deterrent (GBSD), is a future American land-based intercontinental ballistic missile system (ICBM) currently in the early stages of development. It is slated to replace Minuteman III missiles, currently stationed in North Dakota, Wyoming, Montana, and Nebraska from 2029 through 2075. In 2020 the Department of the Air Force awarded defense contractor Northrop Grumman a $13.3 billion sole-source contract for development of the LGM-35 after Boeing withdrew its proposal. Northrop Grumman's subcontractors on the LGM-35 include Lockheed Martin, General Dynamics, Bechtel, Honeywell, Aerojet Rocketdyne, Parsons, Textron, and others.
| LGM-35A Sentinel | |
|---|---|
Concept rendering of the LGM-35A | |
| Type | Intercontinental ballistic missile |
| Place of origin | United States |
| Service history | |
| In service | 2030 (proposed) |
| Used by | United States |
| Production history | |
| Manufacturer | Northrop Grumman |
| Specifications | |
| Warhead | W87 mod 0 thermonuclear warhead (300 kilotons of TNT (1,300 TJ)) W87 mod 1 thermonuclear warhead (unknown yield) |
Detonation mechanism | Ground-burst and/or air-burst fusing modes |
| Engine | Three-stage solid-fuel rocket |
Guidance system | astro-inertial + GPS |
Launch platform | Missile silo |
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